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First Alert Z-Wave Enabled Battery Smoke Carbon Monoxide Combo Alarm (Works With The Ring Alarm Security Kit), ZCOMBO-G (1039833) | thepadoctor.com
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First Alert Battery-Operated Smart Combination Smoke and Carbon Monoxide Detector with Voice Alert at Lowes.com
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First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm Base Station, 2nd Generation - - Amazon.com
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Home & Garden Home Security Equipment Works with Ring First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm
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